Fig. 5. (a) The distribution of EH values of 1447 ternary SAAs. Each color represents an individual host metal. Note that there are 752 EH values inside the range of −0.57 to −0.17 eV. (b) The distribution of the mixing energies (Emix) of 752 ternary SAAs with their EH values inside the range of −0.57 to −0.17 eV. The same mark indicates the same host metal with different guest metals. (c) The distribution of the number of potentially active SAAs on the respective host metal. (d) Some identified potential ternary SAA surface configurations that justify further experimental work. In this work, the syntax for the combination of host and guest metals is H–G1–G2. For example, Pt–Al–Zn indicates a combination where Pt is the host metal and Al and Zn are the guest metals.
